Finding the Fourth Proportional to 346,684,348.14, 478,422,646.23 and 187,913,831.58
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Solution
The fourth proportional to 346,684,348.14, 478,422,646.23 and 187,913,831.58 is: 259,320,136.75
Step by Step Solution
- Step 1: Write the proportion equation
346,684,348.14 : 478,422,646.23 = 187,913,831.58 : x - Step 2: Convert to fraction form
346,684,348.14/478,422,646.23 = 187,913,831.58/x - Step 3: Cross multiply
346,684,348.14x = 478,422,646.23 × 187,913,831.58 - Step 4: Simplify right side
346,684,348.14x = 89,902,232,567,722,144 - Step 5: Solve for x
x = 89,902,232,567,722,144/346,684,348.14 - Step 6: Final answer
x = 259,320,136.75
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.